Lubricated valve



Oct. 1, 1940. J. M. wlLKlNs LUBRICATED VALVE Filed June 21, 1935 2 Sheets-Sheet gwua yvboe, James If 104112771 mic-u Oct. 1, 1940. J. M; WILKINS V I 2,216,150

LUBRICATED VALVE Filed June 21. 1955 MM I of the valve and the numeral l Patented Oct. 1, 1940 UNITED STATES 2,218,150 LUBBIOATED VALVE james M.

Mueller nois Wilkins, Decatur, 111., 00., Decatur, 111., a corporation of Illiassignor to Application June 21, 1935, Serial N0. 21,775

1 Claim.

The present invention relates to. lubricated valves. The principal object of theinvention is to provide a lubricated valve which includes an arrangement of lubricating passages of maximum simplicity and wherein the passages are so positioned with respect to each other that the valve is sealed against leakage by grease under pressure when the plug member is in both opened and closed positions, andwhich are also arranged in such a manner that at the moment during tuming of the plug member when the port of the plug member is opened to one of the lubricant passages and also to the flow passageway of the casing member, the lubricant in the exposed lubricant passage will not be under pressure. The present valve also includes lubricant passages at each end of the plug member to prevent leakage.

Other objects and advantages of the invention will be apparent wherein Figure 1 is a longitudinal sectional view through the valve.

Figure 2 is a transverse section on the line 2-4 of Figure 1 showing the plug member in closed position.

Figure 3 is a view-similar to Fgure 2 showing the plug member in partly opened or intermediate position.

Figure 4 is a view similar to Figure 2 showing the plug member in opened position.

Figure 5 is a longitudinal sectional line 5-5 of Figure 1.

Figure 6 is a transverse section on the line i of Figure 5.

Figure '7 is a of Figure 5.

Figure 8 is. a longitudinal sectional view of the casing member, and

Figure 9 is an elevation of the plug member.

The numeral Ill designates the casing member l indicates the plug member. The casing member I0 is provided with a flow passageway 12 for movement of fluid therethrough and a tapered seat l3 extends transversely of the passageway. The plug member II is of tapered form to fit the seat I! and is provided with a port M which is adapted to be aligned with the flow passageway I! in the easing member It When the plug member is turned to open position. 1 1

The plug member H preferably has an integral threaded stud I! at its lower .or smaller end and a flat washer l6 positioned upon this stud is held tightly against the lower surface ll of the casing-member it, as shown in Figure 1, by a nut view on the transverse section on the line 1-1 from the following drawings II. By this arrangement, the plug member H is held properly seated in the seat l3. As is indicated in Figures 1 and 8, the surface I1 is inwardly and upwardly inclined. The washer I6 is preferably formed of metal having of resiliency so that it may bend upwardly into the slight depression formed by the inclined surface IT for a purpose hereinafter set forth. I

.It will be understood that the use of the terms upper" and "lower with respect to variousparts of the valve is intended to be relative only and refers merely to the position of the valve as shown in the drawings.

As its larger end, the plug member H is provided with a stem l9 having a bore 20 extending axially thereof. The stem I! may be flattened it to be turned, or it may lower verse channel 2i and the upper end of the here is threaded to receive a set-screw or plunger 22 by means of which the grease in the passages of the valve may be maintained under proper It will be obvious that lubricant may be inserted in the bore upon removal of'the plunger 22, and the reinsertion of the plunger will cause the lubricant to be placed under pres sure.

The seating surface of the valve formed by the tapered seat I3 of the casing member and the seat face of the plug member II is provided with the arrangement of passages, grooves and channels hereinafter described to permit the lubricant to seal the seating surface.

The seat l3 of the casing member has a, circumferential groove 25 extending thereabout at a point adjacent theupper endof the seat and a second circumferentially extending groove 28 is provided intermediate the lower end of the seating surface and the lower side of the flow passageway II. The plug member It has a circmnferential groove or passageway 21 therein arranged opposite the upper casing member groove 25, groove 21 being in communication with the transverse channel 2|. The plug-member is likewise provided with a circumferential groove 28 positioned opposite the lower circumferential groove 2! of the casing member.

The seat ll of the casing member is provided with four longitudinally or axially extending pas- I. sages ll, spaced substantially 90 apart and one of a length circumferential grooves 21 position,

member is provided with downwardly extending pockets or notches 32; four of these notches preferably being provided and the notches being in such position that when Since the latter passages thus contain lubricant under pressure, there can be no leakage about the plug member.

The lower circumferential passage 28 of the plug member H is provided with one with an adjacentpa-ssagc 36 when the plug member is in opened position. Lubricant may therefore flow from the passage 30 with which the lower notch 3% is aligned and to theropposed lower circumferential passages 26 and 28.

It will be observed from the above that when the plug member is in when the plug mem ber is in this position, none of the notches 32 ith any of the ecause of this,

the longitudinal passages which are exposed to the flow passageway will not be under pressure and hence the plug member lifting of the plug member will be permitted by the resilient washer I6 and the inclination of the surface I1 against which it bear The circumferential passages 25 and 21 and 26 and 28 are which has been given does not include all of the uses of which it is capable; ology employed in the specification is for the purpose of description and not of limitation.

I claim:

JAMES M. WILKINS.

also, that the phrase- 

